An example might help: in July of last year I bought exactly this 2x32 DDR5 kit for $141: https://www.amazon.com/dp/B0DSR14511
It's showing $999 now, which seems about median for similarly-spec'd memory on Amazon. The cheapest slot-and-capacity-compatible equivalent I can find is around $570, even. So 3-5x increase, at minimum.
It's true that that's a high error bar. It's absolutely not true that the trend is ambiguous.
Can you cherry pick me a $141 kit, please? I mean, it's not an abstract question! I'd buy it from you right now if you had it or could get it, in whatever quantity you can source. No joke.
When I say it's flat, I obviously mean the last couple of months. You'd have to be blind not to see last year's runup.
You'd also have to be blind not to see that the charts contradict your claim that "they're going down".
https://pcpartpicker.com/trends/price/memory/
Note how flat the black lines are.
Then note how wide the gray bands are. That makes it very easy to cherry-pick a few examples to present as "supporting evidence" that prices are doing whatever you want to believe they are doing.